The diagram demonstrates the circulation of water in the natural environment.
Overall, there are 5 steps in the sequence, starting with the evaporation of the oceanic water and ending with it flowing back to the ocean.
In the first stage, a huge amount of liquid in the ocean is evaporated into the air by the heat of the sun, accounting for nearly 80 percent of the total water vapour in the air. Over time, this steam will condense to form clouds. Due to the precipitation, they then fall down onto the mountain, with part of them turning into snow clinging to the top of the mountain and the rest accumulating into lakes. The conclusion of this step marks the beginning of a series of land processes. In the next stage, the snow subsequently melts into liquid and flows on the surface of the mountain. On the other hand, the majority of the water located in the lakes percolates through the surface of the ground, followed by its transformation to groundwater, which then follows the same direction as the melting snow. Finally, both sources of water will converge and then experience an intrusion into the ocean, preparing for a new cycle.